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Farmers helping farmers : the rise of the farm and home bureaus, 1914-1935
Berlage, Nancy K., (2016)
The stubborn earth : American agriculturalists on Chinese soil, 1898 - 1937
Stross, Randall E., (1986)
Materialy po istorii selʹskogo chozjajstva i krestʹjanstva Rossii : selʹskochozjajstvennye instrukcii
Danilova, Ljudmila Valerianovna, (1987)
A History of agricultural experimentation and research in the United States 1607 - 1925
True, Alfred Charles, (1970)
The cotton plant : its history, botany, chemistry, culture, enemies, and uses
Dabney, Charles William, (1896)
A History of agricultural extension work in the United States 1785-1923
True, Alfred Charles, (1928)